Tip for gas-burners.



BUDDINGTON. TIP FOR GAS BURNERS. APPLIOATION FILED 00T. s

, 1907. RENBWED SEPT. 27, 1912.

Patented N 0V. 5

UNITED sTATEs PATENT oEEicE..

FRANK E. BUDDINGTON, OF CHICAGO, ILLINOIS.

TIP FOR GAS-BURNERS.

Specification of Letters Patent.

Patented Nov. 5, 1912.

Application led October 3, 1907, Serial No. 395,720. Renewed September 27, 1912. Serial No. 722,761.

To all whom 'it may concern:

Be it known that I, FRANK E. BUDDING- Tnx, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Tips for Gas- Burners, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

The object of the present invention is to provide a ,as burner that shall be simple and cheap 1n construction and that shall se.- eure a more effective discharge and complete combustion of the gas so that the maximum illumination may be had with a low rate of gas consumption.

The invention consists in the features of novelty hereinafter described, illustrated in the accompanying drawing and particularly pointed out in the claims at'the end of this specification.

Figure l is a View in vertical cross section through a gas burner tip embodyingr my invention. Fig. l is a view through the-burner tip taken at right angles to the section shown in Fig. 1. Figs. 3 and 4 are views similar' to Figs. l and 2, but showing a somewhat modified form ot' the invention.

A designates the upper part of a gas burner of usual or suitable form adapted to receive my improved burner tip.

B denotes the body of my burner tip that isT preferably made of aluminum or other suitable. sheet metal. the lower portion of the body B preferably tapered somewhat to permit it to be readily inserted within the body of the burner portion A. As shown, the upper portion of my improved burner tip is formed with a contracted neck C, although this is not essential` above which extends the top plate D. In the top plate D is formed a concavo-convex depression (l centrally of which is formed an elongated slot or opening d through which the gas will issue. As shown` the slot d is of uniform width and at each end of the slot there is formed a depending lip d2, the purpose of which will presently appeal'. At each side of the slot. d the concavo-convex portion of the top plate extends in substantially horizontal direction, as shown at als, and at the ends of the slot the top plate extends at substantially right angles to the vertical walls cf the tip, as shown at d4.

In operation, the gas rising through the tip, as indicated by the arrows, will contact with the portions of the top plate at the ends and sides of the slot d and kwill be defiected downward and centrally toward the slot, while at. the same time the portion of the gas passing centrally through the tip will meet with the gas thus detiected by the top plate and the commingling of the gas currents thus effected will tend to prevent the blowing of the gas and insure its more uniform passage through the slot so that theV liability of the flame to flicker or become unsteady, is avoided. The portions of gas passing through the ends of the slot and implnging against each other, cause the flame to extend at right angles to the slot, as shown in Figs. l and 3, producing a circular fan-Shaped flame.

. In practice I have found that with my Improved tip a most effective combustion of the gas is secured and that with a comparatively light pressure and small consumption, an increased iilun'iinating effect is obtained.

While it is not essential that any regulating mechanism for reducing or checking the fiow of the gas shall be provided, I prefer to provide such a device at the lower portion of my burner tip. Preferably the lower end of the burner tip is provided with an inwardly turned fiange I) above which is set a concavo-convex screen of' wire gauze or foraminous material Il over which extends a thin sheet or cover F of asbestos. The screen E and the cover F serve to check the fiow of the gas and insure itsmore uniform delivery to the tip. The inwardlv turned lip Z) serves to effectively hold the metal screen E in place, as the lip Z; being very narrow permits the screen to be inserted within the lower portion of the tip body B.

In the form of the invention shown in Figs. 3 and 4 of the drawing` the construction is substantially the same as above described, except that the neck portion C is more contracted at the sides and is less abruptly contracted at the ends. The operation of this form of the invention is substantially the same as the operation of the form hereinbefore described.

Having thus described my invention. what I claim as new and desire to secure by Letters Patent, is y l. A gas burner tip formed of thin sheet metal and comprising a hollow body provided with an integral flat top plate having a central depressed, concavo-convex portion forming an elongated transverse groove upon its upper face and a transverse projecting rib upon its lower face, a narrow central cross slit in said concavo-convex portion arranged substantially at right angles to said groove and said rib and terminating short of the edges of said top plate, said top plate having an unobstructed upper face and the under surface thereof at the ends of fsaid slit and between the edges of the top plate and said rib being imperforate and substantially horizontal, whereby the greater portion of the gas passing through the tip is projected horizontally in opposite directions through the ends of said cross slit, substantially as described.

2. A gas burner tip of thin sheet metal comprising a hollow -bod' having a. contracted upper end portion ormed with-a Hat top plate, said top plate having a central, depressed, concavo-convex portion formlng a transverse groove across its upper face and a transverse projecting rib across its lower face, the surfaces of said groove and rib extending substantially at right angles to the vertical axis of the body and a crossslit in said concavo-convex portion arranged substantially at right angles to said groove and rib, substantially as described.

FRANK E. BUDDINGTON. Witnesses:

KATHARINE GEMACH, LILLIAN PRENTICE. 

